Publications [#245621] of Robert P. Behringer
Papers Published
- Howell, D; Behringer, RP; Veje, C, Stress fluctuations in a 2D granular couette experiment: A continuous transition,
Physical Review Letters, vol. 82 no. 26
(December 1999),
pp. 5241-5244, American Physical Society (APS) [doi]
(last updated on 2019/02/20)Abstract:
Experiments on a slowly sheared 2D granular material show a continuous transition as the packing fraction γ passes through γc ≃ 0.776. The mean stress, σ, plays the role of an order parameter. As γ → γc from above, (1) the compressibility becomes large, (2) a slowing down of the mean velocity occurs, (3) the force distributions change, and (4) the network of stress chains changes from intermittent long radial chains near γc to a tangled dense network for larger γ. © 1999 The American Physical Society.